nla_parse: 30 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor793'. netlink: 44 bytes leftover after parsing attributes in process `syz-executor793'. watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor793:6329] Modules linked in: irq event stamp: 6372689 hardirqs last enabled at (6372688): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (6372689): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (8956): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (8995): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (8995): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 6329 Comm: syz-executor793 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 7c 31 d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 fb eb e6 f8 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ba007bb8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: 0000000000000286 RCX: 1ffff11015f5f16f RDX: dffffc0000000000 RSI: ffff8880afaf8b58 RDI: 0000000000000286 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b40 R14: 0000000000000000 R15: ffff8880ba022b40 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f51f066d38b CR3: 0000000087ffe000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mod_timer kernel/time/timer.c:1071 [inline] mod_timer+0x4ea/0x1010 kernel/time/timer.c:1114 pie_timer+0x67b/0x740 net/sched/sch_pie.c:438 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:mm_update_next_owner+0x361/0x650 kernel/exit.c:450 Code: ff ff 48 81 fd 50 84 e7 89 48 89 04 24 0f 84 0b 01 00 00 e8 11 c8 29 00 48 8d bd 54 fc ff ff 48 89 f8 48 c1 e8 03 0f b6 14 18 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 26 02 00 00 44 RSP: 0018:ffff88807bcb7a98 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13 RAX: 1ffff11014db28a4 RBX: dffffc0000000000 RCX: ffffffff8138bd9e RDX: 0000000000000000 RSI: ffffffff8138bd5f RDI: ffff8880a6d94524 RBP: ffff8880a6d948d0 R08: ffff8880b59fa460 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808d0f37c0 R13: 0000000000200000 R14: ffff8880afaf8280 R15: ffff8880a3dfb3c0 exit_mm kernel/exit.c:548 [inline] do_exit+0xae4/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f582bb6e229 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f582bb17318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f582bbef4c8 RCX: 00007f582bb6e229 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f582bbef4c8 RBP: 00007f582bbef4c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f582bbbc2dc R13: 00007ffd95509c2f R14: 00007f582bb17400 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6341 Comm: ifquery Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:queued_write_lock_slowpath+0x11f/0x290 kernel/locking/qrwlock.c:88 Code: 03 41 83 e7 07 4c 8d 2c 02 41 83 c7 03 41 0f b6 45 00 41 38 c7 7c 08 84 c0 0f 85 34 01 00 00 8b 03 3d 00 01 00 00 74 1a f3 90 <41> 0f b6 45 00 41 38 c7 7c eb 84 c0 74 e7 48 89 df e8 ab 62 4c 00 RSP: 0018:ffff88807db5fcf0 EFLAGS: 00000006 RAX: 0000000000000300 RBX: ffffffff89e09080 RCX: ffffffff814bfec6 RDX: 1ffffffff13c1210 RSI: 0000000000000004 RDI: ffffffff89e09080 RBP: 1ffff1100fb6bf9f R08: 0000000000000001 R09: fffffbfff13c1210 R10: ffffffff89e09083 R11: 0000000000000000 R12: ffffffff89e09084 R13: fffffbfff13c1210 R14: ffff88807db5fd18 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f55bd1c25e0 CR3: 0000000009e6d000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queued_write_lock include/asm-generic/qrwlock.h:103 [inline] do_raw_write_lock+0xcf/0x1e0 kernel/locking/spinlock_debug.c:203 exit_notify kernel/exit.c:715 [inline] do_exit+0xc41/0x2be0 kernel/exit.c:890 do_group_exit+0x125/0x310 kernel/exit.c:967 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f55bd1c2618 Code: Bad RIP value. RSP: 002b:00007ffe58ba55e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f55bd1c2618 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 RBP: 00007f55bd49f8e0 R08: 00000000000000e7 R09: ffffffffffffff98 R10: 00007ffe58ba5568 R11: 0000000000000246 R12: 00007f55bd49f8e0 R13: 00007f55bd4a4c20 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 48 c7 c0 88 82 f1 89 mov $0xffffffff89f18288,%rax 7: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx e: fc ff df 11: 48 c1 e8 03 shr $0x3,%rax 15: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) 19: 75 2f jne 0x4a 1b: 48 83 3d 7c 31 d8 01 cmpq $0x0,0x1d8317c(%rip) # 0x1d8319f 22: 00 23: 74 15 je 0x3a 25: 48 89 df mov %rbx,%rdi 28: 57 push %rdi 29: 9d popfq * 2a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction 2f: eb b2 jmp 0xffffffe3 31: e8 fb eb e6 f8 callq 0xf8e6ec31 36: eb c0 jmp 0xfffffff8 38: 0f 0b ud2 3a: 0f 0b ud2 3c: 48 rex.W 3d: c7 .byte 0xc7 3e: c7 (bad) 3f: 88 .byte 0x88